I fly from a well-established farm strip.
One of the other co-owners (actually he was getting his check out having only recently joined the group) encountered another aircraft landing in the opposite direction. He had made the usual blind calls on the airfield frequency with no response received.
No sweat, he touched and went, taking off over the other aircraft (good thing they didn't both make the same decision...)
He did another circuit, only to find himself in the same situation AGAIN.
This time he saw the other aircraft before landing and went round.
It then happened a THIRD time.
On the fourth attempt he landed. The three other aircraft were visitors who had failed to get PPR. If they had done so they would have known that the airfield frequency changed over 2 years ago.
Probably wise to get PPR, on the whole.